Two glass types for luminescent solar concentrators are presented: Type 1 is a silicate glass activated with Yb203, Nd203 and Cr20. This type shows luminescence in the region 970-1080 nm. It is possible to use it in combination with a silicon detector. The glass type 2 is a borosilicate glass activated with UO2. Its wavelength region of luminescence is 510-560 nm. It can be used in combination with a CdS/Cu2S or GaAs photo detector respectively.